cmake_minimum_required(VERSION 3.15...3.28)

project(fast_tsp VERSION "0.1.5")

if(SKBUILD)
  # Scikit-Build does not add your site-packages to the search path
  # automatically, so we need to add it _or_ the pybind11 specific directory
  # here.
  set(Python_EXECUTABLE "${PYTHON_EXECUTABLE}")
  set(Python_INCLUDE_DIR "${PYTHON_INCLUDE_DIR}")
  set(Python_LIBRARY "${PYTHON_LIBRARY}")
endif()

find_package(Python COMPONENTS Interpreter Development.Module)

if(SKBUILD)
  # Scikit-Build does not add your site-packages to the search path
  # automatically, so we need to add it _or_ the pybind11 specific directory
  # here.
  execute_process(
    COMMAND "${PYTHON_EXECUTABLE}" -c
            "import pybind11; print(pybind11.get_cmake_dir())"
    OUTPUT_VARIABLE _tmp_dir
    OUTPUT_STRIP_TRAILING_WHITESPACE COMMAND_ECHO STDOUT)
  list(APPEND CMAKE_PREFIX_PATH "${_tmp_dir}")
endif()

# Now we can find pybind11
find_package(pybind11 CONFIG REQUIRED)

pybind11_add_module(_core MODULE src/main.cpp src/tsp.h)

target_compile_definitions(_core PRIVATE VERSION_INFO=${PROJECT_VERSION})

install(TARGETS _core DESTINATION .)
